The line chart provides information regarding the proportions of four distinct types of recycled household waste in a particular city from 1992 to 2002.
Overall, it is evident that with the exception of plastic, the other three types: paper, glass, and cans were recorded at nearly similar figures initially. However, glass was the most prevalent type of waste recycled by citizens by the end of the surveyed years.
In 1992, the level for glass stood at roughly 18%, staying at a similar point in comparison to that for paper. Over the next 5 years, the percentages of recyclable glass and paper rose considerably, by 15% and 10%, respectively. Eventually, they continuously underwent substantial growth in the period from 1997 to 2002. In particular, the biggest difference between them was a gap of approximately 10%, with the figure for glass higher, standing at nearly 48%.
When it comes to the category of cans, it showed a more moderate pattern at the beginning. After decreasing slightly from roughly 18% in 1992 to 15% in 1997, a dramatic increase could be observed in this indicator, finishing at around 28% in 2002 as the third highest rate. In contrast, there were no significant alterations in the plastic sector, fluctuating just under and just over 10% during the examined period.